DJI UAV Phantom3 4K version of the frequency key

A DJI Phantom3 4K version, after overhaul, I found that I couldn't connect to the controller and needed to re-pair the frequency, but I couldn't find where the frequency-pairing button was. I searched the Internet for a long time, and they said that it was the second hole on the side, but this The hole was empty and there was nothing. Finally, I went to ask the drone students and teachers. No one knew. The key is to ask DJI online customer service to find out.

The nameplate on the front is Phantom 4K

Steps for pairing the DJI Phantom 3 4K version (Phantom3) with the remote controller:

1. Turn on the remote control first and connect the mobile device. Then turn on the Intelligent Flight Battery and run the DJI GOApp.

2. Select the "Controller" interface, click the icon, and then click the "Remote pairing" button.

3. The DJI GO App displays a countdown dialog box. At this time, the status indicator of the remote control flashes blue and emits a beep sound.

4. Use a suitable tool to press the link button (as shown in the figure below) and release it to complete the link. After the pairing is completed, the indicator light of the remote control will turn green

1 point is the hole in the general manual (Phantom3 4K version is empty, useless)

2 points are indicator light and frequency pairing button